Bitnation uses Slack as communication platform.
In the mid of October 2017 we run in an invitation limit issue. Because of the limit we can not invite new members to our Slack anymore. We are working to resolve the issue as quickly as possible and apologize for any inconvenience.

Update
The Slack support asked us to shutdown the public invite service, before they will consider reenabling invitations for our workspace. Therefore the public Slack invite service for Bitnation is discontinued.
Decentralized Governance 2.0